Gyeongin Expressway was constructed in 1968 as its first expressway, and since then, the expressway has developed so rapidly for the relatively short period of about 40 years. As a result, now in 2010, it is operating total length of 4,010km with 32 lines. Considering that the damage on road network throughout Korea caused by the Korean Civil War in the early 1950s was very serious, the result of expressway construction is really enormous. In addition to the rapid network expansion, the operation and maintenance system have been so much sophisticated by introducing the pavement management system, structure information system, road facility management system. Especially, from 1993, Intelligent Transportation System was introduced on the basis of the traffic management system and electronic toll collection system. The purpose of the study is to provide insight of potential conditions when developing countries consider expressway construction. (The rest omitted)